public class E5{
  public static void main(String args[]){
    int[] a={10,20,30,40},b[]={{1,2},{4,5,6,7}};
    b[0]=a;
    b[0][1]=b[1][3];
    System.out.println(b[0][3]);
    System.out.println(a[1]);
  }
}
